The rfPIC12F675 has the same device ID as the 12F675. I happen
to get one to test out PICkit 2 and it works.

Some findings:
PIC12 baseline devices do not have an device ID so far.
rfPIC12F675 has the same device ID as 12F675 (0FC0). 
16F639 has the same device ID as 16F636 (10A0). 
16F684 has the same device ID as 18F4520 (1080).
18F2439 has the same device ID as 18F242.
18F2539 has the same device ID as 18F252.
18F4439 has the same device ID as 18F442.
18F4539 has the same device ID as 18F452.
...

Regards,
Xiaofan 

-----Original Message-----
From: piclist-bounces@mit.edu 
Sent: Tuesday, November 15, 2005 7:00 AM
To: 'Microcontroller discussion list - Public.'
Subject: RE: [PIC] Programming a 16f84 vs 16f877

> Do you know of overlapping IDs within a family?  That would 
> be really bad.

IIRC there is some chip with motor control firmware, which has the same
ID as the corresponding chip without the firmware. You could argue that
they are the same chip, but to preserve the firmware the chip has to be
erased differently. I have a vaugue recollection of some other chips
that had the same documented ID, but this might have been 'just' a
documentation error.

Did you check the 12rf chips?

Wouter van Ooijen
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